Description

There are a multitude of Blood Gems in Bloodborne. They can be found in fixed locations in addition to random drops from enemies both in the game and in Chalice Dungeons.

The best blood gems can be found in Depth 5 Chalice Dungeons.

A Blood Gem has 4 properties

Shape - Determines where the gem can be socketed

Primary Affix - The main +Effect of the gem

Level - The magnitude of the Primary Affix (1-6)

Rank - An overall strength based on primary and secondary strength (1-20)

Notes

that the Rating of a gem provides a possible range for the bonus and the ranges overlap between level. As such it is possible for a lower rank gem with a high bonus to provide greater benefit than a higher rated gem with a low bonus.

Gems can have up to 3 properties. The primary affix on the gem as well as less powerful, secondary affixes.

Shapes

Radial

Radial blood gems are more likely to have effects that boost physical damage.
This is the primary gem shape found in the Phtumeru Chalice Dungeons

Triangle

Triangle blood gems are more likely to have effects which provide physical or arcane damage.
This is the primary gem shape found in the Isz Chalice Dungeons

Waning

Most waning blood gems are more likely to have effects which provide fire or bolt effects.
This is the primary gem shape found in the Loran Chalice Dungeons

Circle

Circular blood gems are normally used to fortify firearms.

Droplet

Droplet blood gems are special gems that adapt to various weapons and shapes, naturally making them highly prized among hunters.
They can be placed in any type of weapon socket, making them highly versatile.

Affixes

Blood gems can have up to three properties depending on their affixes and type.

There are many types of affixes, and the rank of the blood gem determines the magnitude of the effect.

Additionally any gem can be Cursed which will result in a higher maximum benefit, but with a drawback property as well.